white cochin pullet with dirty feet

Maddie, our white cochin pullet is gorgeous. Her comb and wattles are coming in and they are bright red and she is PURE white...well, except for the black slippers!! She scratches all day in the run and by dusk, her feet are as black as coal. By morning, they are white again. I noticed today that they are looking a bit greyish. We keep them in clean conditions, tons of space, she's very happy. Will this present a problem for her feet??? On Monday, she'll be 9 weeks old.

It is always difficult with foot feathers and with the years they will become worn out on free range chickens. Most show breaders keeps their foot-feathered chickens inside until they have been shown. Mine our out side but they are black. Something that helps is sand in the chicken house. I always use sand instead of straw or shavings and the chickens loves it. It cleans them up during the night when the weather is bad.

My white Cochins all have discolored foot feathers now. They are all over 6 months old and free range during the day.
We have orange dirt in some places and black dirt in others. They just love to get as dirty as possible, especially after a rain!
I have thought of trimming away a lot of those feathers but just haven't gotten that far. And now we have another 17 Cochin chicks in Partridge and blue so this ought to be real pretty! NOT!